Method and apparatus for adjusting a power control threshold in a communication system
First Claim
1. An apparatus for maintaining received signal power levels at an average level when a signal power estimate on average is similar to the average of actually received signal power levels, comprising:
- (a) estimating means for generating an estimate of the power of a received signal;
(b) difference means, operatively coupled to the estimating means, for generating a difference signal by subtracting the estimated received signal power from a predetermined reference signal power; and
(c) adjustment means, operatively coupled to the difference means, for adjusting a signal power control threshold as a function of the difference signal.
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Abstract
A method and apparatus is provided for maintaining received signal power levels at an average level when a signal power estimate is on average similar to the average of actually received signal power levels. The maintaining of the received signal power levels is accomplished by generating an estimate of the power of a received signal. Subsequently, a difference signal is generated by subtracting the estimated received signal power from a predetermined reference signal power. Finally, a signal power control threshold is adjusted as a function of the difference signal.
143 Citations
24 Claims
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1. An apparatus for maintaining received signal power levels at an average level when a signal power estimate on average is similar to the average of actually received signal power levels, comprising:
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(a) estimating means for generating an estimate of the power of a received signal; (b) difference means, operatively coupled to the estimating means, for generating a difference signal by subtracting the estimated received signal power from a predetermined reference signal power; and (c) adjustment means, operatively coupled to the difference means, for adjusting a signal power control threshold as a function of the difference signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for maintaining received signal power levels at an average level when a signal power estimate on average is similar to the average of actually received signal power levels, comprising:
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(a) generating an estimate of the power of a received signal; (b) generating a difference signal by substracting the estimated received signal power from a predetermined reference signal power; and (c) adjusting a signal power control threshold as a function of the difference signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for maintaining received signal power levels at an average level when a signal power estimate on average is similar to the average of actually received signal power levels, comprising:
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(a) estimating means for generating an estimate of the power of a received signal; (b) difference means, operatively coupled to the estimating means, for generating a difference signal by subtracting the estimated received signal power from a predetermined reference signal power; (c) adjustment means, operatively coupled to the difference means, for adjusting a signal power control threshold as a function of the difference signal; (d) power control means, operatively coupled to the adjustment means, for setting a power control indicator in response to the result of a comparison between the received signal power estimate and the adjusted power control threshold; and (e) signal transmitting means, operatively coupled to the power control means, for transmitting the power control indicator over a communication channel. - View Dependent Claims (20, 21)
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22. A method for maintaining received signal power levels at an average level when a signal power estimate on average is similar to the average of actually received signal power levels, comprising:
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(a) generating an estimate of the power of a received signal; (b) generating a difference signal by subtracting the estimated received signal power from a predetermined reference signal power; (c) adjusting a signal power control threshold as a function of the difference signal (d) setting a power control indicator in response to the result of a comparison between the received signal power estimate and the adjusted power control threshold; and (e) transmitting the power control indicator over a communication channel. - View Dependent Claims (23, 24)
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Specification